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https://issues.apache.org/jira/browse/HDFS-11600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16395689#comment-16395689
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Xiao Chen commented on HDFS-11600:
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Thanks Sammi for the work here, LGTM in general! Just have 1 question and a few
minor comments.
Questions:
- Looking at the original tests, I think
TestDFSStripedOutputStreamWithFailure[000-210] covered continuously the range
[0, 219], judging from this
[code|https://github.com/apache/hadoop/blob/branch-3.0.0/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSStripedOutputStreamWithFailure.java#L714-L728].
Do you know why this range was chosen?
In current patch, we test randomly in the same range but not continuously. But
I think that should be fine.
Comments:
- import * is usually discouraged - less strict for tests, but please change if
possible.
- Should use slf4j Logger in the new code as we're (slowly) moving away from
apache commons logging
- This is from existing code, but now may be a good chance to change - could
you do {{tearDown}} with a {{@After}} annotation? This way, each test doesn't
have to try-finally.
- Can still see the unused {{testCloseWithExceptionsInStreamer}} in
{{TestDFSStripedOutputStreamWithFailureBase}}
> Refactor TestDFSStripedOutputStreamWithFailure test classes
> -----------------------------------------------------------
>
> Key: HDFS-11600
> URL: https://issues.apache.org/jira/browse/HDFS-11600
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: test
> Affects Versions: 3.0.0-alpha2
> Reporter: Andrew Wang
> Priority: Minor
> Attachments: HDFS-11600-1.patch, HDFS-11600.002.patch,
> HDFS-11600.003.patch, HDFS-11600.004.patch, HDFS-11600.005.patch
>
>
> TestDFSStripedOutputStreamWithFailure has a great number of subclasses. The
> tests are parameterized based on the name of these subclasses.
> Seems like we could parameterize these tests with JUnit and then not need all
> these separate test classes.
> Another note, the tests will randomly return instead of running the test.
> Using {{Assume}} instead would make it more clear in the test output that
> these tests were skipped.
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